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Auto Repair ShopPro · $5~3 hours to set up, saves 5+ hours/week

Streamline Parts Ordering and Inventory Tracking

Parts ordering is a silent drain on most independent shops. Service advisors spend 30+ minutes per complex job searching for parts, comparing prices, waiting for callbacks, and chasing delivery ETAs. When a part arrives wrong or late, the bay is idle, the customer is frustrated, and the day is blown. This guide builds a disciplined parts system: a supplier comparison and ranking built from your own invoices and quotes (the AI organizes and compares what you paste in — it cannot look up live supplier pricing), a standard ordering workflow, inventory tracking for fast-movers, and a shop-floor parts protocol that gets parts to the tech efficiently. Log advisor parts time for a week before you start so you can see what the workflow gives back.

Intermediate~3 hours to set up, saves 5+ hours/weekChatGPT or Claude · Your supplier list · Recent parts invoices

What You’ll Get

  • A ranked supplier list built from your own invoices — delivery time, price, quality, and return policy
  • A standardized parts ordering workflow that takes minutes, not 30+ minutes
  • An inventory tracking system for fast-moving parts that eliminates "don’t have it, can’t do it"
  • A shop-floor parts protocol so techs stop leaving bays to hunt parts
  • A monthly supplier performance review

Step-by-Step Guide

1

Audit your current parts costs and supplier mix

Before optimizing, know where parts money and time goes. The AI can only compare what you give it — it has no access to supplier catalogs or live pricing — so the invoices you paste are the whole dataset.

Data you need

Pull 30 days of parts invoices across all suppliers. For each: supplier, part category, cost, order-to-arrival time, return policy, typical quality issues. For the 10 parts you buy most, also get a current quote from two or three suppliers (phone, portal, or email) so there is something to compare. Log ~1 week of time spent per service advisor on parts tasks.

Prompt
I want to audit my parts costs, suppliers, and time spent. You can't look up supplier prices — everything you need is pasted below, so work only from that.

My shop:
- Supplier mix: [LIST — e.g. NAPA, Worldpac, dealer, Amazon, Rock Auto, local independent]
- Monthly parts spend: $[AMOUNT]
- Typical markup: [%]
- Service advisor parts time per week: [ESTIMATE]

Here is my recent parts data:
[PASTE INVOICES SUMMARY — supplier, part type, cost, delivery time, quality notes]

Here are current quotes I collected for my 10 most-bought parts, from each supplier I asked:
[PASTE QUOTES — part, supplier, quoted price, quoted delivery]

Please analyze:
1. **Supplier share** — % of spend by supplier
2. **Cost comparison** — using only the invoices and quotes above, on parts we buy from multiple suppliers, who's cheapest and by how much; flag where the sample is a single invoice
3. **Delivery time comparison** — who's fastest
4. **Quality flag** — any supplier with repeated quality issues
5. **Return policy comparison** — who makes returns easy, who makes it painful
6. **"Best use case" per supplier** — when to use each
7. **Consolidation opportunity** — could we cut our supplier count and improve terms
8. **The time drain** — where are the 30+ min jobs and what's eating the time
2

Rank suppliers and build a "which supplier for which job" matrix

Not every job needs the cheapest part. Build a matrix from your Step 1 audit that gets the right part at the right cost and right speed.

Prompt
I want a supplier ranking and "which supplier when" matrix, built only from the audit data below — don't assume anything about supplier pricing you haven't seen.

From my audit:
[PASTE SUMMARY FROM STEP 1]

Please create:
1. **Ranked supplier list** — overall ranking by value (balance of price, speed, quality, service)
2. **"Which supplier for which job"** matrix:
   - Fast-moving wear items (oil, filters, brake pads)
   - Common repair parts (calipers, alternators, starters, water pumps)
   - Specialty/diagnostic parts
   - Rare parts
   - Warranty work parts
   - Customer-supplied parts (do we allow, under what conditions)
3. **Go-to supplier by situation** — customer waiting / scheduled for tomorrow / out 3+ days / emergency breakdown
4. **Relationships to invest in** — which suppliers deserve the "one call and it shows up" relationship vs. which are commodity
5. **Consolidation opportunity** — can we reduce supplier count and get better pricing/priority

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